121330131187 has 2 divisors, whose sum is σ = 121330131188. Its totient is φ = 121330131186.

The previous prime is 121330131161. The next prime is 121330131259. The reversal of 121330131187 is 781131033121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121330131187 - 2³⁵ = 86970392819 is a prime.

It is not a weakly prime, because it can be changed into another prime (121330131137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60665065593 + 60665065594.

It is an arithmetic number, because the mean of its divisors is an integer number (60665065594).

Almost surely, 2^121330131187 is an apocalyptic number.

121330131187 is a deficient number, since it is larger than the sum of its proper divisors (1).

121330131187 is an equidigital number, since it uses as much as digits as its factorization.

121330131187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 31.

The spelling of 121330131187 in words is "one hundred twenty-one billion, three hundred thirty million, one hundred thirty-one thousand, one hundred eighty-seven".